Added forward declaration of friend functions

src/functionObjects/field/nearWallFields/findCellParticle.H

@@ -45,6 +45,14 @@ namespace Foam
 
 class findCellParticleCloud;
 
+
+// Forward declaration of friend functions and operators
+
+class findCellParticle;
+
+Ostream& operator<<(Ostream&, const findCellParticle&);
+
+
 /*---------------------------------------------------------------------------*\
                      Class findCellParticle Declaration
 \*---------------------------------------------------------------------------*/

src/functionObjects/field/streamLine/streamLineParticle.H

@@ -48,6 +48,14 @@ namespace Foam
 
 class streamLineParticleCloud;
 
+
+// Forward declaration of friend functions and operators
+
+class streamLineParticle;
+
+Ostream& operator<<(Ostream&, const streamLineParticle&);
+
+
 /*---------------------------------------------------------------------------*\
                      Class streamLineParticle Declaration
 \*---------------------------------------------------------------------------*/

src/functionObjects/field/wallBoundedStreamLine/wallBoundedParticle.H

@@ -46,6 +46,14 @@ SourceFiles
 namespace Foam
 {
 
+// Forward declaration of friend functions and operators
+
+class wallBoundedParticle;
+
+Ostream& operator<<(Ostream&, const wallBoundedParticle&);
+Ostream& operator<<(Ostream&, const InfoProxy<wallBoundedParticle>&);
+
+
 /*---------------------------------------------------------------------------*\
                      Class wallBoundedParticle Declaration
 \*---------------------------------------------------------------------------*/

src/functionObjects/field/wallBoundedStreamLine/wallBoundedStreamLineParticle.H

@@ -49,6 +49,14 @@ namespace Foam
 
 class wallBoundedStreamLineParticleCloud;
 
+
+// Forward declaration of friend functions and operators
+
+class wallBoundedStreamLineParticle;
+
+Ostream& operator<<(Ostream&, const wallBoundedStreamLineParticle&);
+
+
 /*---------------------------------------------------------------------------*\
                  Class wallBoundedStreamLineParticle Declaration
 \*---------------------------------------------------------------------------*/